Alert archive / Iowa / Fayette County
Weather alerts in Fayette County, Iowa, 2010
147 weather alerts in 2010, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Fayette County and its neighbors
Each county as a circle sized by its count in 2010. Tap one for its archive.
- Alerts
- 147
- Warnings
- 30
- Watches
- 33
- Advisories
- 40
- Busiest month
- July33 alerts
- Busiest day
- April 6, 20109 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Fayette County, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 12 | 8 | 33% | 11 | 100% | 16 min |
| Flash flood warnings | 8 | 3 | 63% | 11 | 82% | 67 min |
Each office's whole area, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS La Crosse, WI: tornado warnings | 11 | 6 | 45% | 17 | 35% | 10 min |
| NWS La Crosse, WI: severe thunderstorm warnings | 114 | 81 | 29% | 225 | 71% | 23 min |
| NWS La Crosse, WI: flash flood warnings | 30 | 12 | 60% | 38 | 63% | 58 min |
An office's figures cover every county it serves, including across state lines.
Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.
The alerts
Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 1, 3:23 PM CST | Wind Chill Warning | ARX | 21 hr |
| Jan 3, 3:04 PM CST | Wind Chill Advisory | ARX | 21 hr |
| Jan 4, 3:00 PM CST | Wind Chill Advisory | ARX | 20 hr |
| Jan 5, 2:29 PM CST | Winter Storm Watch | ARX | 14 hr |
| Jan 6, 4:11 AM CST | Winter Storm Warning | ARX | 38 hr |
| Jan 7, 3:32 PM CST | Wind Chill Advisory | ARX | 20 hr |
| Jan 16, 10:45 PM CST | Dense Fog Advisory | ARX | 13 hr |
| Jan 17, 5:46 PM CST | Dense Fog Advisory | ARX | 45 hr |
| Jan 19, 3:42 PM CST | Freezing Rain Advisory | ARX | 47 hr |
| Jan 20, 10:34 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Jan 21, 6:22 PM CST | Freezing Rain Advisory | ARX | 6 hr |
| Jan 25, 12:34 PM CST | Winter Weather Advisory | ARX | 15 hr |
| Feb 7, 3:15 AM CST | Winter Storm Watch | ARX | 12 hr |
| Feb 7, 3:13 PM CST | Winter Storm Warning | ARX | 51 hr |
| Feb 12, 7:13 PM CST | Dense Fog Advisory | ARX | 16 hr |
| Feb 14, 2:39 PM CST | Winter Weather Advisory | ARX | 21 hr |
| Mar 7, 3:50 PM CST | Dense Fog Advisory | ARX | 20 hr |
| Mar 8, 9:24 PM CST | Dense Fog Advisory | ARX | 15 hr |
| Mar 10, 11:01 AM CST | Dense Fog Advisory | ARX | 22 hr |
| Mar 10, 7:46 PM CST | Areal Flood Advisory | ARX | 57 hr |
| Mar 17, 3:54 AM CDT | Dense Fog Advisory | ARX | 8 hr |
| Mar 30, 12:31 PM CDT | Wind Advisory | ARX | 6 hr |
| Apr 2, 11:35 AM CDT | Mesoscale Discussion | SPC | 85 min |
| Apr 2, 12:53 PM CDT | Severe Thunderstorm Warning | ARX | 37 min |
| Apr 2, 12:59 PM CDT | Severe Thunderstorm Watch | SPC | 117 min |
| Apr 2, 1:31 PM CDT | Severe Thunderstorm Warning | ARX | 37 min |
| Apr 5, 9:37 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Apr 6, 4:05 AM CDT | Mesoscale Discussion | SPC | 85 min |
| Apr 6, 3:09 PM CDT | Flood Watch | ARX | 13 hr |
| Apr 6, 4:51 PM CDT | Severe Thunderstorm Warning | ARX | 39 min |
| Apr 6, 4:55 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Apr 6, 5:06 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 6, 5:10 PM CDT | Severe Thunderstorm Warning | ARX | 65 min |
| Apr 6, 5:32 PM CDT | Severe Thunderstorm Warning | ARX | 58 min |
| Apr 6, 6:44 PM CDT | Areal Flood Advisory | ARX | 5 hr |
| Apr 6, 7:36 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Apr 6, 9:51 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Apr 29, 10:07 AM CDT | Wind Advisory | ARX | 8 hr |
| Apr 30, 12:01 PM CDT | Mesoscale Discussion | SPC | 29 min |
| Apr 30, 12:16 PM CDT | Severe Thunderstorm Warning | ARX | 44 min |
| Apr 30, 12:23 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 4, 2:49 PM CDT | Mesoscale Discussion | SPC | 56 min |
| May 5, 9:41 AM CDT | Wind Advisory | ARX | 7 hr |
| May 7, 3:27 PM CDT | Freeze Watch | ARX | 12 hr |
| May 8, 3:36 AM CDT | Freeze Warning | ARX | 29 hr |
| May 22, 2:20 AM CDT | Dense Fog Advisory | ARX | 7 hr |
| Jun 1, 6:02 PM CDT | Severe Thunderstorm Warning | ARX | 33 min |
| Jun 5, 2:31 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Jun 11, 5:01 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Jun 17, 4:46 PM CDT | Mesoscale Discussion | SPC | 59 min |
| Jun 17, 5:50 PM CDT | Tornado Watch | SPC | 7 hr |
| Jun 17, 7:39 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Jun 17, 9:55 PM CDT | Severe Thunderstorm Warning | ARX | 65 min |
| Jun 22, 3:56 PM CDT | Flash Flood Watch | ARX | 14 hr |
| Jun 22, 7:08 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 22, 11:47 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Jun 23, 1:29 AM CDT | Tornado Watch | SPC | 7 hr |
| Jun 23, 1:41 AM CDT | Flash Flood Warning | ARX | 3 hr |
| Jun 23, 1:50 AM CDT | Severe Thunderstorm Warning | ARX | 55 min |
| Jun 23, 2:19 AM CDT | Severe Thunderstorm Warning | ARX | 26 min |
| Jun 23, 2:44 AM CDT | Severe Thunderstorm Warning | ARX | 61 min |
| Jun 25, 7:42 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 26, 4:13 AM CDT | Flash Flood Watch | ARX | 27 hr |
| Jun 26, 1:16 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Jun 26, 7:56 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 26, 10:58 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Jul 3, 3:18 PM CDT | Flash Flood Watch | ARX | 44 hr |
| Jul 5, 11:14 PM CDT | Flash Flood Warning | ARX | 3 hr |
| Jul 7, 7:47 AM CDT | Flash Flood Warning | ARX | 4 hr |
| Jul 7, 8:02 AM CDT | Flash Flood Watch | ARX | 20 hr |
| Jul 13, 3:43 AM CDT | Dense Fog Advisory | ARX | 4 hr |
| Jul 14, 3:07 AM CDT | Heat Advisory | ARX | 16 hr |
| Jul 14, 10:29 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 14, 11:43 AM CDT | Tornado Watch | SPC | 7 hr |
| Jul 14, 6:53 PM CDT | Tornado Watch | SPC | 8 hr |
| Jul 16, 4:41 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 16, 7:28 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Jul 17, 3:57 AM CDT | Heat Advisory | ARX | 11 hr |
| Jul 17, 8:55 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 17, 11:59 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Jul 18, 2:31 AM CDT | Mesoscale Discussion | SPC | 59 min |
| Jul 22, 2:48 AM CDT | Mesoscale Discussion | SPC | 57 min |
| Jul 22, 3:17 AM CDT | Flash Flood Watch | ARX | 21 hr |
| Jul 22, 2:06 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Jul 22, 3:50 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 22, 4:42 PM CDT | Flash Flood Warning | ARX | 3 hr |
| Jul 22, 9:04 PM CDT | Flash Flood Warning | ARX | 6 hr |
| Jul 23, 1:23 AM CDT | Mesoscale Discussion | SPC | 52 min |
| Jul 23, 2:59 AM CDT | Flash Flood Warning | ARX | 5 hr |
| Jul 23, 3:51 AM CDT | Flash Flood Watch | ARX | 26 hr |
| Jul 23, 7:57 AM CDT | Areal Flood Warning | ARX | 6 hr |
| Jul 23, 10:49 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Jul 23, 11:16 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 23, 11:27 PM CDT | Flash Flood Warning | ARX | 3 hr |
| Jul 23, 11:31 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 24, 2:22 AM CDT | Flash Flood Warning | ARX | 5 hr |
| Jul 24, 7:21 AM CDT | Areal Flood Warning | ARX | 7 hr |
| Jul 27, 1:25 PM CDT | Heat Advisory | ARX | 6 hr |
| Jul 28, 2:06 AM CDT | Mesoscale Discussion | SPC | 84 min |
| Jul 31, 9:30 PM CDT | Dense Fog Advisory | ARX | 12 hr |
| Aug 8, 9:40 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Aug 8, 10:08 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 8, 11:19 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Aug 8, 11:43 PM CDT | Severe Thunderstorm Warning | ARX | 51 min |
| Aug 9, 2:20 AM CDT | Mesoscale Discussion | SPC | 100 min |
| Aug 10, 6:28 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 10, 5:08 PM CDT | Mesoscale Discussion | SPC | 67 min |
| Aug 10, 9:01 PM CDT | Flash Flood Watch | ARX | 6 hr |
| Aug 10, 10:25 PM CDT | Areal Flood Advisory | ARX | 4 hr |
| Aug 11, 2:23 PM CDT | Heat Advisory | ARX | 6 hr |
| Aug 12, 3:54 AM CDT | Heat Advisory | ARX | 15 hr |
| Aug 13, 1:51 AM CDT | Flash Flood Watch | ARX | 22 hr |
| Aug 13, 3:55 AM CDT | Heat Advisory | ARX | 15 hr |
| Aug 13, 4:20 AM CDT | Mesoscale Discussion | SPC | 115 min |
| Aug 13, 10:36 AM CDT | Mesoscale Discussion | SPC | 84 min |
| Aug 13, 12:04 PM CDT | Mesoscale Discussion | SPC | 56 min |
| Aug 13, 2:39 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 13, 7:22 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Aug 19, 3:30 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 21, 8:56 PM CDT | Dense Fog Advisory | ARX | 13 hr |
| Aug 31, 4:57 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 31, 8:11 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Sep 6, 3:22 PM CDT | Wind Advisory | ARX | 25 hr |
| Sep 6, 5:38 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Sep 6, 7:50 PM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Sep 7, 5:42 AM CDT | Wind Advisory | ARX | 10 hr |
| Sep 15, 6:07 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Oct 2, 3:27 AM CDT | Frost Advisory | ARX | 30 hr |
| Oct 24, 3:22 PM CDT | High Wind Watch | ARX | 24 hr |
| Oct 25, 3:27 PM CDT | High Wind Warning | ARX | 52 hr |
| Oct 25, 9:36 PM CDT | Mesoscale Discussion | SPC | 24 min |
| Oct 25, 10:03 PM CDT | Tornado Watch | SPC | 9 hr |
| Dec 2, 3:21 AM CST | Winter Storm Watch | ARX | 24 hr |
| Dec 3, 3:48 AM CST | Winter Storm Warning | ARX | 38 hr |
| Dec 3, 10:13 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Dec 3, 5:50 PM CST | Mesoscale Discussion | SPC | 5 hr |
| Dec 9, 3:50 PM CST | Winter Storm Watch | ARX | 24 hr |
| Dec 10, 3:57 PM CST | Winter Weather Advisory | ARX | 26 hr |
| Dec 10, 11:08 PM CST | Blizzard Warning | ARX | 35 hr |
| Dec 11, 6:49 PM CST | Mesoscale Discussion | SPC | 5 hr |
| Dec 12, 10:01 AM CST | Wind Chill Advisory | ARX | 25 hr |
| Dec 15, 3:17 AM CST | Winter Weather Advisory | ARX | 36 hr |
| Dec 19, 3:42 PM CST | Winter Weather Advisory | ARX | 44 hr |
| Dec 23, 3:32 AM CST | Winter Weather Advisory | ARX | 38 hr |
| Dec 24, 6:24 AM CST | Winter Storm Warning | ARX | 12 hr |
| Dec 29, 11:04 AM CST | Dense Fog Advisory | ARX | 39 hr |
| Dec 30, 3:13 PM CST | Winter Weather Advisory | ARX | 24 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20092011
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.